KR102200346B1 - Locking apparatus of laser processing machine - Google Patents

Abstract

The present invention is to provide a table fixing device for laser processing capable of improving processing precision and productivity by quickly fixing a shuttle table on which an object to be processed is seated at an accurate position. The present invention for this purpose is a fixed table provided with a guide rail; A shuttle table on which an object to be processed is seated and movably installed along the guide rail; And a locking unit for fixing the position of the shuttle table moved upward of the fixed table.

Description

Table fixing device for laser processing{LOCKING APPARATUS OF LASER PROCESSING MACHINE}

The present invention relates to a table fixing device for laser processing, and more particularly, to a table fixing device for laser processing capable of improving the precision of laser processing by stably fixing a shuttle table on which an object to be processed is seated at an accurate position.

In general, laser processing equipment is used to precisely process a complex shape on a sheet or plate-shaped object.

Such a laser processing apparatus includes a bed frame, a table on which an object to be processed is seated and fixed or movably installed on the bed frame, and a laser processing head for processing the object by irradiating a laser beam toward the object to be processed. And a moving device installed on the bed frame to move the laser processing head.

As an example of the moving device, a gantry may be used.

The gantry is a bridge-shaped structure that is coupled to both sides with a corresponding region therebetween, and the lower ends of both sides are coupled to be movable on the bed frame.

In addition, a laser processing head is coupled to the gantry so as to be movable in a width direction orthogonal to a moving direction of the gantry.

As a result, the laser processing head coupled to the gantry moves in the front and rear, left and right directions of the table on which the object to be processed is mounted, and can process the object to be processed.

Such a laser processing apparatus greatly affects the precision of the object to be processed not only the laser processing head and the moving device, but also the structure of the table on which the object to be processed is seated.

For example, if the table on which the object to be processed is seated is not fixed at an exact position on the bed frame and a minute error occurs, not only the processing precision is degraded, but good cutting surface quality cannot be expected.

Korean Registered Patent Publication No. 10-1024086 (announcement on March 22, 2011)

An object of the present invention is to solve the conventional problems, the present invention is to provide a table fixing device for laser processing that improves processing precision and productivity by quickly fixing a shuttle table on which an object to be processed is seated in an accurate position.

A table fixing device for laser processing according to the present invention for achieving the above-described problem comprises: a fixed table provided with a guide rail; A shuttle table on which an object to be processed is seated and movably installed along the guide rail; And a locking unit connecting the fixed table and the shuttle table and fixing a position of the shuttle table moved upward of the fixed table, wherein the locking unit is coupled to the shuttle table, and the shuttle A rotation block having a locking block provided with a locking groove concave in a direction perpendicular to the movement direction of the table, and a locking member rotatably coupled to the fixed table and inserted into or removed from the locking groove according to the degree of rotation And, a locking drive for rotating the rotation block, wherein the locking groove is provided on the other side of the locking block and a first locking groove provided on one side of the locking block in a direction orthogonal to the moving direction of the shuttle table. And a second locking groove to be formed, wherein the locking member is disposed at one end about the rotation axis of the rotation block, and disposed at the other end about the rotation axis of the rotation block and a first locking member inserted into the first locking groove And a second locking member inserted into the second locking groove.

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In addition, in the table fixing device for laser processing according to the present invention, the locking groove includes: a locking groove in which the locking member is seated; A shear slope formed at one end of the locking groove to be obliquely inclined along a first moving direction of the shuttle table, and provided to have a reaction force in the first moving direction while being in contact with the locking member; And a rear end inclined portion formed to be obliquely inclined at the other end of the locking groove portion along a second movement direction opposite to the first movement direction, and provided to have a reaction force in the second movement direction while being in contact with the locking member. can do.

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In addition, in the table fixing device for laser processing according to the present invention, a bed frame provided with an installation space therein and a running rail disposed on an extension line of the guide rail may further include, and in this case, the fixed table May be disposed inside the installation space of the bed frame.

Since the table fixing device for laser processing according to the present invention can quickly and easily fix the shuttle table on which the object to be processed is seated through the locking unit, the precision and productivity of laser processing can be improved.

In addition, since the table fixing device for laser processing according to the present invention is mounted on a fixed table completely independent from the bed frame, the shuttle table on which the object to be processed is seated is prevented from being transmitted to the object side during laser processing. Block, and thus, the precision of laser processing can be further improved.

1 is a perspective view showing a laser processing apparatus to which a table fixing apparatus for laser processing according to the present invention is applied.
FIG. 2 is an exploded perspective view showing the laser processing device in a state in which the moving device is removed from FIG. 1.
3 is a plan view showing the laser processing apparatus in a state in which the moving device is removed from FIG. 1.
4 is a view showing a locking block of the table fixing device for laser processing according to the present invention.
5 is a view showing a rotating block and a locking driving unit of the table fixing device for laser processing according to the present invention.
6 is a view for explaining the operation of the laser processing table fixing device according to the present invention.

Hereinafter, preferred embodiments of the present invention in which the above-described problem to be solved can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiments, the same names and the same reference numerals are used for the same components, and additional descriptions thereof are omitted.

1 is a perspective view showing a laser processing apparatus to which a table fixing device for laser processing according to the present invention is applied, FIG. 2 is an exploded perspective view showing the laser processing apparatus in a state in which the moving device is removed from FIG. 1, and FIG. It is a plan view showing the laser processing device with the moving device removed from

Referring to FIGS. 1 to 3, a table fixing device for laser processing according to the present invention may include a bed frame 300, a fixed table 400, a shuttle table 500, and a locking unit 600.

The bed frame 300 may be configured with a laser processing head 100 for laser processing of the object 1 and a moving device 200 for moving the laser processing head 100.

The bed frame 300 may include a base portion 300A and a side wall portion 300B formed on a side portion of the base portion 300A.

The base part 300A may provide an area in which the object to be processed is placed, and the sidewall part 300B may provide an area in which the moving device 200 is installed.

As shown, a gantry may be applied as the moving device 200.

For example, the lower ends of both sides of the gantry are coupled to the sidewall portion 300B of the bed frame 300 so as to be movable, so that the gantry can move on the bed frame 300.

At this time, the laser processing head 100 is coupled to the gantry so as to be movable in a width direction orthogonal to the moving direction of the gantry.

The moving device 200 is not particularly limited to the gantry type described above, and various types of moving devices 200 may be applied on the bed frame 300.

The laser processing apparatus according to the present invention is implemented in a structure in which the shuttle table 500 on which the object to be processed is seated is seated on a fixed table 400 completely independent from the bed frame 300, so that the object to be processed from the bed frame 300 (1) It blocks a series of vibrations transmitted to the side.

In other words, the bed frame 300 and the fixed table 400 are installed in a state that is not physically connected to each other, and a spacer 311 that blocks vibration transmission between the bed frame 300 and the fixed table 400 is provided. Is formed.

To this end, an installation space 310 in which the fixing table 400 is inserted and installed may be provided in the base portion 300A of the bed frame 300 providing a processing area.

The installation space 310 may be provided in various shapes corresponding to the planar shape of the fixed table 400 to be inserted and installed.

In addition, the installation space 310 has a structure that is open up and down, and when the fixing table 400 is inserted into the installation space 310 while the bed frame 300 is placed on the floor surface of the workshop, the lower side of the fixed table 400 And the floor surface of the workshop may be in contact with each other.

In addition, a pair of running rails 320 connected to the installation space 310 may be provided at the base portion 300A of the bed frame 300.

The running rail 320 is for guiding the movement of the shuttle table 500 to be described later, and may be arranged to connect the installation space 310 at one side of the bed frame 300.

Therefore, the shuttle table 500 may be moved from the outside of the bed frame 300 to the installation space 310 through the upper surface of the base portion 300A.

The running rail 320 may be formed in a rail structure having a certain cross section that is formed concave or convex on the upper surface of the base portion 300A of the bed frame 300.

The fixed table 400 may be disposed inside the installation space 310 of the bed frame 300. Specifically, the fixed table 400 is manufactured to be smaller than the size of the installation space 310 of the bed frame 300 to form a space 311 between the bed frame 300 and the fixed table 400, It may be inserted and disposed in the installation space 310 in a state spaced apart from the bed frame 300 through the spacer 311.

In addition, a guide rail 420 may be provided on the upper surface of the fixed table 400.

The guide rail 420 basically has a cross-sectional shape corresponding to the running rail 320 and is disposed on an extension line of the running rail 320.

Therefore, the shuttle table 500 moving along the running rail 320 passes through the upper surface of the base portion 300A constituting the bed frame 300 and is moved to the upper side of the fixed table 400 on which the guide rail 420 is installed. I can.

Meanwhile, in the state of being inserted and installed in the installation space 310, the spacing of the spacer 311 formed between the bed frame 300 and the fixed table 400 is formed to have the same size as a whole along the circumference of the fixed table 400 It may be possible, and may be formed in different sizes along the circumference of the fixed table 400.

For example, the spacer 311 may include a first spacer 311A and a second spacer 311B.

The first spacer 311A may be disposed parallel to the moving direction of the moving device 200, and at this time, the first spacer 311A may maintain a first distance D1 of a predetermined size.

In other words, the first spacer 311A may be disposed parallel to the moving direction of the shuttle table 500.

The second spacer 311B may be disposed orthogonally to the moving direction of the moving device 200, and at this time, the second spacer 311B may maintain a second distance D1 of a predetermined size.

In other words, the second spacer 311B may be disposed orthogonal to the moving direction of the shuttle table 500.

In this case, the second spacing D2 of the second spacing part 311B may be larger than the first spacing D1 of the first spacing part 311A.

That is, when setting the degree of the spacing of the spacing part 311, the first spacing of the first spacing part 311A exhibiting a large vibration characteristic according to the driving characteristics of the laser processing head 100 and the moving device 200 ( D1) is preferably formed relatively large.

In addition, when the distance between the spacers 311 is set, the second spacer 311B of the second spacer 311B to which the traveling rail 320 and the guide rail 420 are connected to ensure stable movement of the shuttle table 500 It is preferable that the interval D2 is formed relatively small.

Subsequently, the fixed table 400 may include a height adjustment unit 430.

The height adjustment unit 430 is for adjusting the height of the fixed table 400 with respect to the floor surface of the workplace in a state in which the fixed table 400 is inserted in the installation space 310, and the height adjustment unit 430 By using, it is possible to accurately match the guide rail 420 on the extension line of the running rail 320 of the bed frame 300 or adjust the self-leveling of the fixed table 400.

For example, the height adjustment unit 430 may include a screw fastening member that is installed at the lower end of the fixing table 400 and supports the fixing table 400 from the floor of the workplace.

As another example, the height adjustment unit 430 may include a cylinder installed at the lower end of the fixed table 400 to support the fixed table 400 from the floor surface of the workplace.

The configuration of the screw tightening member or the height adjustment unit 430 including the cylinder is obvious to a person skilled in the art, so a detailed description thereof will be omitted.

As the height adjustment unit 430 is adjusted in this way, the traveling rail 320 and the guide rail 420 are accurately matched, thereby passing the traveling rail 320 of the bed frame 300 and the fixed table 400 It is possible to stably guide the movement of the shuttle table 500 moving toward the guide rail 420.

In addition, as the height adjustment unit 430 is adjusted, the horizontality of the object to be processed 1 seated on the shuttle table 500 is changed, or the horizontality of the object to be processed 1 according to the type or characteristics of the object 1 The position of the shuttle table 500 may be set by appropriately adjusting the degree.

In addition, a vibration isolating unit may be provided at the lower end of the fixed table 400 to block vibrations that may be transmitted from the floor of the workplace. This anti-vibration unit may be provided in the height adjustment unit 430.

In addition, the fixed table 400 may be formed of a frame structure having a rigidity enough to stably support the shuttle table 500 and the object 1 as shown.

The shuttle table 500 may be configured to be movable along the traveling rail 320 and the guide rail 420 as the object 1 is mounted.

That is, the shuttle table 500 moves along the running rail 320 of the bed frame 300 in a state in which the object to be processed 1 is seated outside the bed frame 300 to the upper side of the fixed table 400. A series of laser processing is performed on the object to be processed 1 in a movable state that is moved upward of the fixed table 400.

In addition, when laser processing of the object to be processed 1 is completed, the shuttle table 500 may move in reverse along the running rail 320 of the bed frame 300 and discharged to the outside of the bed frame 300.

As shown, the shuttle table 500 may include a table frame 510 and a workpiece seating portion 520.

The table frame 510 may support the workpiece seating portion 520.

A driving wheel 511 (FIG. 5) may be provided below the table frame 510 so as to be movable along the guide rail 420 and the driving rail 320. A plurality of the driving wheels 511 may be disposed to be spaced apart from each other along the moving direction of the shuttle table 500.

The workpiece seating portion 520 may be installed on the table frame 510 and the object to be processed 1 may be seated on the upper surface. Such a workpiece seating portion 520 should basically have sufficient resistance against simultaneous laser collisions that must support the object 1 and dissipate heat efficiently.

As illustrated, the workpiece seating portion 520 may be formed by arranging a plurality of slats side by side on the table frame 510. The entire plurality of slats arranged in parallel may form a plane on which the object to be processed 1 is seated. In addition to this, the workpiece seating portion 520 may have various shapes and arrangement structures such as a pin structure and a honeycomb structure.

On the other hand, although not shown, the shuttle table 500 placed on the running rail 320 of the bed frame 300 around the bed frame 300 is moved to the outside of the bed frame 300 or A table exchange unit may be provided for moving the shuttle table 500 placed outside to the running rail 320 side of the bed frame 300.

In addition, in the vicinity of the bed frame 300, the object to be processed (1) is loaded to load the object to be processed (1) on the shuttle table (500) or to unload the object to be processed (1) seated on the shuttle table (500). An unloading unit may be provided.

Figure 4 is a view showing the locking block of the table fixing device for laser processing according to the present invention, Figure 5 is a view showing the rotating block and the locking drive of the table fixing device for laser processing according to the present invention, Figure 6 is a view according to the present invention It is a view for explaining the operation process of the laser processing table fixing device.

4 to 6, the locking unit 600 (FIG. 2) connects the fixed table 400 and the shuttle table 500, and the position of the shuttle table 500 moved to the upper side of the fixed table 400 In addition to firmly fixing the shuttle table 500 can always be fixed to a certain position.

For this, the locking unit 600 may include a locking block 610, a rotating block 620, and a locking driving unit 650.

Referring to FIG. 4, the locking block 610 may be coupled to the shuttle table 500 and may be installed on the lower surface of the shuttle table 500 opposite the fixed table 400. For example, the locking block 610 may be coupled to the lower surface of the table frame 510 (FIG. 2) constituting the shuttle table 500.

The locking block 610 may include a first locking groove 611 and a second locking groove 612.

The first locking groove 611 may be formed on one side of the locking block 610 in a width direction orthogonal to the moving direction of the shuttle table 500.

The second locking groove 612 may be formed on the other side of the locking block 610 in a width direction orthogonal to the moving direction of the shuttle table 500.

In this case, the first locking groove 611 and the second locking groove 612 may be disposed to be staggered with respect to a width direction orthogonal to the moving direction of the shuttle table 500.

A first locking member 626, which will be described later, may be inserted and seated in the first locking groove 611, and a second locking member 627, described later, may be inserted and seated in the second locking groove 612.

The first locking groove 611 may include a first locking groove 611a, a first front inclined portion 611b, and a first rear inclined portion 611c.

The first locking groove 611a is a first moving direction A1 of the shuttle table 500 and a second moving direction A2 opposite to the first moving direction A1 while the first locking member 626 is seated. ) To limit movement.

The first shear inclined portion 611b is formed to be obliquely inclined along the first moving direction A1 of the shuttle table 500 at one end of the first locking groove 611a, and is in contact with the first locking member 626 It is provided to have a reaction force in the first moving direction A1.

The first rear end inclined part 611c is formed to be inclined at an angle along the second moving direction A2 of the shuttle table 500 opposite to the first moving direction A1 at the other end of the first locking groove 611a. It is provided to have a reaction force in the second moving direction A2 while being in contact with the second locking member 627.

The second locking groove 612 may include a second locking groove 612a, a second front inclined portion 612b, and a second rear inclined portion 612c.

The second locking groove 612 is configured in the same manner as the first locking groove 611 described above, and a detailed description thereof will be omitted.

5, the rotation block 620 is disposed in the locking unit installation space 411 formed on the upper surface of the fixed table 400, the center disposed in the vertical direction perpendicular to the moving direction of the shuttle table 500 It may be installed to be rotatable about the rotation shaft (620a).

The rotation block 620 may include a first locking member 626 and a second locking member 627.

The first locking member 626 is disposed at one end of the rotation block 620 around the rotation shaft 620a, and may be inserted and seated in the first locking groove 611.

The second locking member 627 is disposed at the other end of the rotation block 620 opposite to the first locking member 626 with the rotation shaft 620a interposed therebetween, and is inserted into the second locking groove 612 Can be settled.

In addition, the rotation block 620 may include a first locking member mounting table 623 and a second locking member mounting table 624.

The first locking member mounting table 623 may have one end coupled to the rotation block 620 and the other end coupled to the first locking member 626. That is, the first locking member mounting table 623 separates the first locking member 626 from the rotation block 620 so that the first locking member 626 maintains a height parallel to the locking block 610.

The second locking member mounting table 624 may have one end coupled to the rotation block 620 and the other end coupled to the second locking member 627. That is, the second locking member mounting table 624 separates the second locking member 627 from the rotation block 620 so that the second locking member 627 maintains a height parallel to the locking block 610.

At this time, the first locking member 626 and the second locking member 627 may be rotatably coupled to the first locking member mounting base 623 and the second locking member mounting base 624, respectively, for example, It may be a roller member.

Meanwhile, in the locking block 610 according to the embodiment of the present invention, the first locking groove 611 and the second locking groove 612 are disposed to be staggered with each other in a direction orthogonal to the moving direction of the shuttle table 500, Correspondingly, it has been described that the rotation block 620 has a first locking member 626 and a second locking member 627 at both ends around a central rotation shaft 620a, but unlike this, the locking block 610 ) Is provided with only the first locking groove 611, and correspondingly, only the first locking member 626 may be formed in the rotating block 620.

Subsequently, the locking driving unit 650 may rotate the rotation block 620.

The locking driver 650 according to the embodiment is installed on the fixed table 400 and may be a cylinder connecting the fixed table 400 and the rotating block 620. Eventually, as the cylinder rod expands or contracts, the rotation block 620 may be rotated around the rotation shaft 620a.

Meanwhile, referring to FIG. 2, in the locking unit 600 according to the present invention, a plurality of locking units 600 may be provided along the moving direction of the shuttle table 500. Accordingly, it is possible to increase the positioning accuracy of the shuttle table 500 in the width direction orthogonal to the moving direction.

According to the illustrated embodiment, two locking units 600 are configured at the front end and the rear end along the moving direction of the shuttle table 500, and unlike this, the locking unit 600 may be provided in three or more numbers. May be.

In this way, the locking unit 600 configured in a plurality along the moving direction of the shuttle table 500 may synchronize the locking operation through one locking driving unit 650.

To this end, when a plurality of locking units 600 are provided, a connection shaft 655 for connecting the locking blocks provided in each locking unit 600 may be included. The rotation of the plurality of locking blocks connected via the connection shaft 655 may be synchronized according to the operation of the locking driver 650.

In addition, the locking unit 600 according to the present invention may be configured to be installed only on one of a pair of rails arranged side by side along the moving direction of the shuttle table 500. It can also be installed.

Hereinafter, the operation of the laser processing table fixing device according to the present invention will be described.

The shuttle table 500 on which the object to be processed 1 is seated moves along the running rail 320 of the bed frame 300 and the guide rail 420 of the fixed table 400 and then enters the upper side of the fixed table 400 After completion, it stops at the preset position.

At this time, the locking block 610 of the shuttle table 500 is disposed between the first locking member 626 and the second locking member 627 of the rotation block 620.

Thereafter, the locking drive unit 650 is operated to operate the locking unit 600.

Referring to FIG. 6, as the rotation block 620 is rotated around the rotation shaft 620a, the first locking member 626 is inserted into the first locking groove 611, and the second locking member 627 is 2 It is inserted into the locking groove 612.

In this case, an error may occur in the stop position of the shuttle table 500.

In this case, the first locking member 626 is in contact with the first shear slope 611b of the first locking groove 611, and the second locking member 627 is the second shear slope of the second locking groove 612 It may be in contact with the part 612b.

At this time, the first locking member 626 pushes the shuttle table 500 in the first moving direction A1 according to the reaction force of the first shear inclined portion 611b, while slipping on the first shear inclined portion 611b. do.

Similarly, the second locking member 627 slides on the second shear slope 612b while pushing the shuttle table 500 in the first moving direction A1 according to the reaction force of the second shear slope 612b. do.

Eventually, the first locking member 626 is naturally seated in the first locking groove 611a of the first locking groove 611, and the second locking member 627 is a second locking groove of the second locking groove 612 It naturally lands on (612a).

Accordingly, the shuttle table 500 is limited in movement in the first movement direction A1 and the second movement direction A2, and is accurately positioned at the set position.

When the position of the shuttle table 500 is fixed as described above, the laser processing head 100 and the moving device 200 are operated, and a series of laser processing is performed on the object to be processed (1) seated on the shuttle table 500. Will perform.

When the laser processing of the object to be processed 1 is completed, the first locking member 626 and the second locking member 627 are formed with the first locking groove 611 and 2 It is separated from the locking groove 612, and the shuttle table 500 is movable.

Thereafter, the shuttle table 500 may be discharged to the outside of the bed frame 300 by moving along the guide rail 420 of the fixed table 400 and the running rail 320 of the bed frame 300.

As described above, since the table fixing device for laser processing according to the present invention can quickly and easily fix the shuttle table 500 on which the object to be processed is mounted through the locking unit 600 to the correct position, the precision of laser processing And productivity can be improved.

In addition, the table fixing device for laser processing according to the present invention, since the shuttle table 500 on which the object to be processed 1 is mounted is mounted on the fixed table 400 completely independent from the bed frame 300, the bed during laser processing It is possible to block the vibration transmitted to the frame 300 from being transmitted to the object to be processed 1, and thereby, the precision of laser processing may be further improved.

As described above, preferred embodiments of the present invention have been described with reference to the drawings, but those skilled in the art will variously modify the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. Can be modified or changed.

100: laser device
200: moving device
300: bed frame
400: fixed table
500: shuttle table
600: locking unit

Claims (5)

A fixed table provided with a guide rail;
A shuttle table on which an object to be processed is seated and movably installed along the guide rail; And
Including; a locking unit for connecting the fixed table and the shuttle table, and fixing the position of the shuttle table moved to the upper side of the fixed table,
The locking unit is coupled to the shuttle table, a locking block having a locking groove formed concave in a direction orthogonal to the moving direction of the shuttle table, and rotatably coupled to the fixed table, according to the rotation degree. It includes a rotation block provided with a locking member that is inserted into or removed from the locking groove, and a locking driving unit that rotates the rotation block,
The locking groove includes a first locking groove provided on one side of the locking block and a second locking groove provided on the other side of the locking block in a direction orthogonal to the moving direction of the shuttle table,
The locking member is disposed at one end about the rotation axis of the rotation block and inserted into the first locking groove, and disposed at the other end about the rotation axis of the rotation block, and inserted into the second locking groove. A table fixing device for laser processing comprising a second locking member. delete The method of claim 1,
The locking groove,
A locking groove in which the locking member is seated;
A shear slope formed at one end of the locking groove to be obliquely inclined along a first moving direction of the shuttle table, and provided to have a reaction force in the first moving direction while being in contact with the locking member; And
A rear end inclined portion formed at the other end of the locking groove portion to be obliquely inclined along a second movement direction opposite to the first movement direction, and provided to have a reaction force in the second movement direction while being in contact with the locking member; Table fixing device for laser processing, characterized in that. delete The method of claim 1,
A bed frame provided with an installation space therein and provided with a running rail disposed on an extension line of the guide rail; further comprising,
The fixed table is a table fixing device for laser processing, characterized in that disposed inside the installation space of the bed frame.

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